Crude-oil burner



Aug. 4, 1925. 1,548,389

F. w. SCHEIFELE CRUDE OIL BURNER Filed May 23, 1925 2 Sheets-Sheet 1 jrzoeizzaz Aug. 4, 1925..

F. W. SCHEIFELE CRUDE OIL BURNER Fild May 23 1925 2 Sheets-Sheet 2 llll' atented Aug, 4, 1925.

FREDERICK W. SCHEIFELE, 0F AUDUBON, NEW JERSEY.

CRUDE-0IL BURNER.

Application filed May 23, 1925.

Z '0 all whom it may concern:

Be it known that I, FREDERICK W. SCHEIFELE, a citizen of the United States, residing at Audubon, in the county of Camden and State of New Jersey, have invented certain new and useful Improvements in Crude-Oil Burners, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to crude oil burners and has for an important object thereof an improvement upon the burner structure, shown in my co-pending application, Serial No. 748,226, filed November 6, 1924, for crude oil burners.

Specifically, it is the object of the present invention to provide in a device having a blower supplying a draft of air to the burner, and connections between the burner and the blower conducting the air from the blower to the burner whereby a portion of the smoke and flame are aspirated and drawn through the connection to the burner together with the air from the blower, a construction such that the aspirator is in cluded directly in the construction of the burner proper.

A further ob'ect of the invention is to provide in combination with a device of this character which is arranged within a fire box means whereby a portion of the contents of the fire box is likewise drawn into the air from the blower and supplied to the burner.

A still further object of the invention is to provide in a device of this character a novel and improved means for heating the oil pipe leading to the burner,

These and other objects I attain by the construction shown in the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention and wherein Figure 1 is a plan view of an Oil burning apparatus constructed in accordance with my invention;

Figure 2-is a side elevation thereof, -1ndicating the position of the burner w1th1n the fire box;

Figure 3 is a vertical sectional V ew through the burner proper taken on the line 3-3 of Figure 1;

Figure 4 is a section on the line 4.- 1 of Figure 1; and

Figure 5 is a reduced section on the line 5-5 of Figure 3.

Serial No. 32,383.

Referring now more particularly to the drawings, the oil burning apparatus includes a burner section 10 adapted to be arranged within a fire box, the walls of which are generally designated at 11 and 12 a control unit having a pump 13 for providing a forced draft of air to the burner and an oil supply line and controls therefor, generally designated at 14 and a gas line 15. The construction of the control unit is fully set forth in my former applicatron and does not enter into the present invention except in combination with the particular burner construction 10 which is employed.

The burner unit comprises a body casting 16 and a cap 17. The body casting 16 is formed to provide a vertically extending cylindrical burner chamber 18 having an open top and adjacent the bottom of its side wall an inlet 0 ening 19. Upon the exterior of this chain er, vertically extending conduits 20 and 21 are formed, these conduits being diametrically opposed and the conduit 20 aligning with and communicating at its lower end with the inlet 19. The conduit 21 has a horizontal extension 22 underlying the burner chamber 18 and extending diametrically thereof, the outer end of this conduit projecting sli htly beyond the wall of the chamber and eing provided with an axial inlet 23 and an upwardly facing inlet 2% arranged in the same sectional plane as the conduits 20, 21 and the inlet 19. The inlet 23 of the extension 22 of the conduit 21 is connected with a conduit 25 to the blower pump 13.

The actual burner, generally designated at 26, has a wall27 abutting the wall of the burner chamber 18 above the inlet 19 and is of less width than such inlet. At its bottom, this wall is provided with a horizontally disposed shelf 28 extending into the chamber 18 and increasing in width as it extends into the chamber. The lower surface of this shelf preferably rests directly upon the bottom of the chamber. The rear edge of this shelf or that edge remote from the wall 27 has formed thereon an upstanding rib or flange 29, the purpose of which will presently appear. Above the shelf 28 is formed what may be termed a generator shelf 30 which is of less length from front to back than the shelf 28 and is connected with the shelf along its side edges by side walls 31, these side walls combining with the flange 29 and vertical front wall 27 to provide upon the upper surface of the shelf 28 a pocket for the collection of oil. The

rear edge of the shelf 30 is notched, as at 32.

The vertical wall 27 has formed therein above the shelf 30 an opening 33. Between the shelves 28 and 30 is a second horizontal opening 34. These openings, when the burner 26 is in proper position in the chamber 18, have their axes directed through the inlet 19 of the burner chamber.

In the outer wall of the conduit 20 is formed an opening 35 of greater size than the opening 33 and axially aligning with this opening. A second opening 36 is also formed-in this wall of the same size as the opening 34 of the burner and a third opening 37, the purpose of which will presently appear. With the opening 35 is engaged a conduit 38 through which is directed an oil pipe 39, the inner end of which projects through the opening 33 of the burner to discharge upon the upper shelf 30. The outer end of the conduit 38 is sealed to the oil pip 39, as at 40, and simply forms a chamber through which heat from the burner may circulate to warm the oil within the oil pipe. Through the openings 36 and 34, the gas pipe 15 is directed to provide a pilot flame for the burner. In the opening 37, a con duit 41 is engaged for-carrying overflow oil from the burner to an automatic cut-ofi' device, generally designated at 42. Attention is directed to the fact that the several conduits 38, 39, 15 and 41 all extend above the inlet 24 of the branch 22 of the conduit 21 which is in communication with the interior of the fire box.

The burner cap includes a cover 43 for the burner chamber 18 having a central opening 44 of less size than the mouth of the opening of the burner chamber. Secured to this cover at diametrically opposed points are vertically extending legs 45 and 46 of a U- shaped conduit, the bight portion 47 of which is subdivided to form two channels 48 and 49. The channel 48 connects the upper ends of the legs 45 and 46 while the channel 49 communicates at one end w1th the leg 45 and at its opposite .end w1th a downwardly facing opening 50 formed in the under surface of the bight port on 47 and of less size than the cap opemng 44 which it opposes in spaced relation. At the under sur ace of the bight portion and at the sides thereof, horizontally projecting wing flanges 51 are formed, providing a spreader plate so that products of combus-. tlon assing from the opening 44 and not enteringthe opening 50 will be spread within the fire box in which the burner is located.

In the operation of the burner, the blower forcing a draft through the conduit 25, leg 22, extension 22 of conduit 21, conduit 21, log 46, channel 48, leg 45- and conduit 20 to the burner chamber 18 produces an aspirating efiect at the inlet 24 of the extension 22, drawing a portion of the contents of the fire box into the air from the blower. It also produces an aspirating effect at the point of communication between the channel 49 and the leg 45, causing suction at the opening 50 which will draw a portion of the products of combustion from the burner chamber 18 into the channel 49 to mingle with the air passing to the inlet of'the burner. Since the contents of the fire box will be heated, the current of heated air passing about the pipes 38, 15 and 41 will cause these pipes to be heated and will, in addition, heat incoming air. This incoming air is still fur ther heated when the products of combustion are added thereto by the products of combustion from the channel 49, so that the mixture delivered to the burner is highly heated and will serve to volatilize the oil and readily intermingle therewith. The burner 26 which is described in my previous application, by reason of its construction, will cause the incoming air to circulate within the burner chamber so that it more readily intermingles with the volatilized oil to make for perfect combustion. It will be obvious that the cap will become highly heated and serve to further heat the incoming air after the burner has been in operation for a short while. Attention is directed to the fact that by the construction hereinbefore described, both the as irator and goose-neck of my former application are produced directly in the burner, the goose-neck being represented by the openin 50 and passage 49 and the aspirator by t e outlet of the passa e 49 pt the junction of the passage 48 with the Since the structure hereinbefore set forth is obviously capable of a certain range of change and modification without materially departing from the spirit of my invention, I do not limit myself to such specific structure except as hereinafter claimed.

I claim:

1. In a crude oil burner, a casting formed to provide a verticall extending open topped burner chamber aving an inlet adjacent the lower end thereof, a conduit for supplying a forced draft of air to the inlet of t e burner chamber, a cap for the chamber including a portion of said conduit and having a vertical opening of less size than the opening of the burner chamber, a gooseneck conduit carried by the cap having one end thereof op osed to the opening of the burner cap and its opposite end connected to said portion of the first named conduit whereby products of combustion will be aspirated therethrough.

2. In a crude oil burner, a casting formed to provide a verticall extending open topped burner chamber aving an inlet adsection the legs of which communicate with i messes jacent the lower end thereof, a conduit for supplying a forced draft of air to the inlet of the burner chamber, a cap for the chamber having a vertical opening of less size than the burner chamber, said cap including a U-shaped conduit, the bight portion of which overlies such vertical opening, said conduit forming a portion of the first named conduit and a goose-neck conduit likewise carried by the cap and having one end thereof directly opposed to the opening of the cap and the opposite end thereof in aspirating communication with said portion of the first named conduit.

3. In a crude oil burner, a casting formed to provide a vertically extending open topped burner chamber having an inlet adjacent the lower end thereof, a conduit for supplying a forced draft of air to the inlet of the burner chamber, a cap for the burner chamber including a U-shaped conduit section forming a portion of the first named conduit, said cap having a vertical opening of less size than the chamber, the bight portion of said U-shaped conduit section being opposed to theopening of the cap and being subdivided to provide two channels, one of said channels communicating at one end with an opening formed in the bight por tion of 'the U-shaped conduit section in opposition to the opening of the cap and at its opposite end with the outlet leg of the U-shaped conduit, the other of said channels connecting the inlet and outlet legs of said U-shaped conduit.

4. In a crude oil burner, a casting formed to provide a vertically extending open topped burner chamber having upon its outer wall a pair of spaced vertically extending conduits,'an inlet for the burner chamber adjacent the lower end thereof with which one of said conduits communicates, means for connecting the other of the conduits with a source of forced draft, a cap for the burner chamber having an opening of less size than the opening of the burner chamber and including a U-shaped conduit the conduits of the burner chamber and the bight portion of which is opposed to the opening of the cap, said bight portion being subdivided into two channels one'of which connects said legs and the other of which communicates with the outlet leg of the U- shaped conduit at one end and at its opposite end has an opening in opposition to the opening of the cap.

5. In a crude oil burner, a casting formed to provide a vertically extending open topped burner chamber having in its outer wall a pair of spaced verticallv extending conduits one of which is. provided with a branch extending transversely of the bottom of the burner chamber and extended beyond the burner chamber wall, said branch at its extension having a vertically directed opening and a horizontally directed opening, the last named opening being adapted for connection with a blower, said burner chamber having an inlet formed therein-adjacent the bottom thereof with which the other of said conduits communicates, a burner within the chamber, feed pipes for the burner extending through the wall of the last named conduit and said inlet and a cap for the burner including a U-shaped conduit having its bight extended above the top of the-burner and its legs'in communication with the conduits of the burner chamber.

6. In a crude oil burner, a casting formed to provide a vertically extending open topped burner chamber having in its outer wall a pair of spaced vertically extending conduits one of which is provided with a branch extendingtransversely of the bottom of the burner chamber and extended beyond the burner chamber wall, said branch at its extension having a vertically directed opening and a horizontally directed opening, the last named opening bein adapted for connection with a blower, said burner chamber having an inlet formedtherein adjacent the bottom thereof with which the other of said conduits communicates, a burner within the chamber, feed pipes for the burner extending through the wall of the last named conduit and said inlet and a cap for the burner including a U-shaped conduit having its bight extended above the top of the burner and its legs in communication with the conduits of the burner chamber, said bight portion being subdivided into two channels one of which connects said legs and the other of which communicates with the outlet leg of the U- shaped conduit at one end and at its opposite end has an opening in-opposition to the mouth of the burner chamber.

7. In a crude oil burner, a casting formed to provide a vertically extending open topped burner chamber having an inlet adjacent the lower end thereof, a conduit for supplying a forced draft of air to the inlet of the burner chamber, a cap for the chamber having a vertical opening of less size than the burner chamber, said cap including a U-shaped conduit, the bight portion of which overlies such vertical opening, said conduit forming a portion of the first named conduit, a goose-neck conduit likewise carried by the cap and having one end thereof directly opposed to the opening of the cap and the opposite end thereof in aspirating communication with said portion of the first named conduit, and wing flanges extending at opposite sides of the bight portion of the U-shaped conduit and providing a flame spreader.

8. in a crude oil burner, a casting formed to provide a vertically extending open :topped burner chamber having upon its outor Wall a pair of spaced vertically extending conduits, an inlet for the burner chamber adjacent the lower end thereof with which one of said conduits communicates, means for connecting the other of the conduits with a source of forced draft, a cap for the burner chamber having an opening of less size than the diameter and including a U- shaped conduit section the legs of which communicate with the conduits of the burner chamber and the bight portion of which is opposed to the opening of the cap, said bight portion being subdivided into two channels one of which connects said legs and the other of which communicates with the outlet leg of the U-shaped conduit at one end and at its opposite end has an opening inopposition to the opening of the cap, and win flanges extending at opposite sides of the bight portion of the U-shaped conduit andproviding a flame spreader.

In testimony'whereof I hereunto alfix my signature.

FREDERICK W. SCHEIFELE. 

